Pond Boss Forums INTRO Questions & Observations Dredging a pond

Here's a fairly simple way to figure it out. First, find out how much watershed feeds your pond. Look at a topographical map, read the contours, and see how much ground feeds into your pond. Then, remember this number..1 acre 1 inch deep is 27,000 gallons of water. Calculate the size and average depth of your pond. Multiply and figure out the storage capacity of your pond. Then, you will know how much runoff from your watershed it will take to refill the pond. For example, if your pond is one acre, and averages five feet in depth, it will take five acre feet, or 60 acre inches, to refill your pond. If the watershed covers 20 acres, it will take three inches of runoff rain to refill your pond. But, keep in mind we aren't thinking about evaporation, or water escaping through seepage. Take those possibilities into account.